PCs on a Mac Network

My school has 500+ Macs, I’m installing a lab of 26 PCs. I have a B&W G3 running OS 9.1 & ASIP 6.3.2 set up to receive Windows clients. When on the Windows machines I can go through Network Neighborhood, connect to the server, view my shared folder and all of it’s contents. When I map that as a network drive and try to view the contents through My Computer, I can see the shared folder, the four folders within that, but I am unable to see any of the contents of the first layer of folders. Does anyone have any thougthts on this? Thanks!